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Patented April 6 1880.

D. W. KISSAM. Wick-Tube for'Lamp-Burner.

WZ'Znesses N.VPETERS, PHOTD-LITHOBRAPHER, WASHINGTON. Dv C DANIEL W.KISSAM, OF BRIDGEPORT, CONNECTICUT, ASSIGNOB TO THE BRIDGEPORT BRASSCOMPANY, OF SAME PLACE.

WlCK-TUBE FOR SPECIFICATION forming part of Letters LAM P-BURNERS.

Patent No. 226,176,.dated April 6, 1880.

Application filed October 21, 1878.

To all whom it may concern:

Be it known that I, DANIEL W. KISSAM, of Bridgeport, in the county ofFairfield and State of Connecticut, have invented a new and usefulImprovement in the WickTubes ofLamp-Burners: and I hereby declare thatthe following is a full, clear, and exact description of the same,reference being bad to the accompanying drawings, forming part of thisspecification.

This invention consists in the wick-tube of a lamp-burner having itsmouth and upper part plain, so that it fits snugly and closely to andcompresses the wick along its whole width or circumference in suchmanner as to prevent the escape of vapor from the interior of thereservoir upward to the flame and the passage of the flame downward tothe oil or fluid in the lamp, but with the portion below corrugated insuch manner as to form a series of internal ridges running lengthwise ofthe tube, for the purpose of grasping the wick in narrow longitudinallines at certain parts ofits width only, and to leave the interveningportions free to expand, and thereby to provide for a free upwardpassage of the oil.

The invention is applicable to burners with flat wicks, and also toArgand burners; but it will be sulficieut for tlie'illustration of myinvention to describe its application to a flatwick burner, asrepresented in the accompanying drawings.

Figure 1 is a vertical section of a burner. Fig. 2 is a top view of thewick-tube. Fig. 3 is a horizontal section of the wick-tube through thecorrugated portion in the line a; :0 of Fig. 4, which is a side view ofthe tube.

The wick-tube A may have its lower part, which is secured in thelamp-cap B, of any known or suitable form and construction. The upperpart, at and a short distance below the mouth a, is of the same form inits horizontal section as the cross-section of the wick, and is of suchsize that the wick fits closely and snugly within it, and its surfacesare plain, as shown in Figs. 1, 2, and 4; but commencing at a shortdistance below the mouth, and ex tending downward any distancelengthwise of the tube on each side, are the series of corrugations c c,which produce the internal ridges, b 1), extending lengthwise of thetube. These ridges press against and hold the wick in narrowlongitudinal lines, but leave it free to expand in the grooved spaces 00 between them; and the said spaces thus provide for the free supply ofoil through the parts of the wick, which so expand within them, so thatwhile the wick is held by the tube not only at and immediately below themouth thereof, but as much farther below as is desirable, it is onlyclosely confined at and immediately below the month, where suchconfinement is necessary.

The wick-tube may be tapered longitudinally toward its tip.

By this construction of the tube all the ad vantage of the corrugatedwick-tube is obtained, and the dangerous consequences which result fromthe liability of the flame to communicate with the vapor inside of theburner when the tube is corrugated all the way up to the mouth areobviated.

I claim 1. The wick-tube of a lamp-burner having a plain mouth, buthaving below the mouth a series of longitudinal. corrugations,substantially as and for the purpose herein described.

2. A wick-tube of a lamp-burner having a plain mouth, but having belowthe mouth a series of longitudinal corrugations forming grooved spacesor channels extending out wardly beyond the inner wall of the wick-tube,

